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Angstrom6

Cat No.:V8782 Purity: ≥98%
Angstrom6 (A6 Peptide) is an 8-amino acid (AA) peptide developed from single-chain urokinase plasminogen activator (scuPA) that interferes with the uPA/uPAR cascade and eliminates downstream effects.
Angstrom6
Angstrom6 Chemical Structure CAS No.: 220334-14-5
Product category: New1
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
100mg
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Product Description
Angstrom6 (A6 Peptide) is an 8-amino acid (AA) peptide developed from single-chain urokinase plasminogen activator (scuPA) that interferes with the uPA/uPAR cascade and eliminates downstream effects. Angstrom6 binds to CD44, inhibits the migration, invasion and metastasis of tumor cells, and regulates CD44-mediated cell signaling.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
Angstrom6 has an IC50 of 10–100 nM, which effectively stops the migration of OVCAR8, OVCAR3, ES2, IGROV-1, MDA-MB-468, and MDA-MB361 cells [3]. As demonstrated by focal adhesion induction and MAP/ERK disrupting phosphorylation, Angstrom6 increases CD44-dependent interaction with hyaluronic acid and stimulates CD44-mediated signaling [3].
ln Vivo
Angstrom6 (100 mg/kg; subcutaneously twice daily) reduces the number of lung lesions produced by intravenous B16-F10 melanoma cells by 50% [3].
Animal Protocol
Animal/Disease Models: C57Bl/6 mice (carrying B16-F10 cells) [3]
Doses: 100 mg/kg
Route of Administration: Sc; twice (two times) daily for 11 days
Experimental Results: The number of pulmonary nodules was diminished, and the number of pulmonary metastases was diminished to control 50%.
References

[1]. A phase 2, randomized, double-blind, placebo-controlled trial of clinical activity and safety of subcutaneous A6 in women with asymptomatic CA125 progression after first-line chemotherapy of epithelial ovarian cancer. Gynecol Oncol. 2008;111(1):89-94.

[2]. Finlayson M. Modulation of CD44 Activity by A6-Peptide. Front Immunol. 2015;6:135. Published 2015 Mar 30.

[3]. A6 peptide activates CD44 adhesive activity, induces FAK and MEK phosphorylation, and inhibits the migration and metastasis of CD44-expressing cells. Mol Cancer Ther. 2011;10(11):2072-2082.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C39H62N10O15
Molecular Weight
910.967589855194
CAS #
220334-14-5
PubChem CID
42638946
Appearance
White to off-white solid powder
Hydrogen Bond Donor Count
11
Hydrogen Bond Acceptor Count
16
Rotatable Bond Count
25
Heavy Atom Count
64
Complexity
1750
Defined Atom Stereocenter Count
8
SMILES
O=C([C@@H]1CCCN1C([C@H](CO)NC([C@H](CO)NC([C@@H]1CCCN1C([C@H](CCCCN)NC(C)=O)=O)=O)=O)=O)N1CCC[C@H]1C(N[C@H](C(N[C@H](C(=O)O)CCC(N)=O)=O)CCC(=O)O)=O
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: Please store this product in a sealed and protected environment, avoid exposure to moisture.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~100 mg/mL (~109.77 mM)
H2O : ≥ 100 mg/mL (~109.77 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (2.74 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (2.74 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (2.74 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.0977 mL 5.4887 mL 10.9773 mL
5 mM 0.2195 mL 1.0977 mL 2.1955 mL
10 mM 0.1098 mL 0.5489 mL 1.0977 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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